I was asked immediately where I was based, and if I was willing to relocate. Which I am not. They then asked how long the commute would be. With the results of those questions they stopped the interview, stating that they are only willing to interview people that will do 5 days in the office.

Standard process but done very efficiently. First, you do a automated video interview and if they like that then the HR rep calls you and if the HR rep likes you then they set you up with people on the team.